Ge`o*chem"is*try (jE`O*kem"is*tr&ybreve;), n. [Gr. ge`a, gh^, the earth + chemistry.]
The study of the chemical composition of, and of actual or possible chemical changes in, the crust of the earth. -- Ge`o*chem"ic*al (#), a. -- Ge`o*chem"ist (#), n.
© Webster 1913